Acetylene-gas lamp.



No. 649,834. Patented May I5, 1900. W. F. GOELTZ, W. M. GILBERT 81. J.FRAIN. ACETYLENE GA'S LAMP.

(Application filed Oct. 6, 189B. Renewed Apr. 2, 1900.) (No Model. 2Sheets$heet l.

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W/TNESSES m: Momma ncrrns co. PHOTO-THO. wAsHmsro n c No. 649,834.Patented May [5, I900. W. F. GOELTZ, W. M. GILBERT & J. FRAIN.

AGETYLENE GAS LAMP.

(Application filed. Oct. 5, 1898. Renewed Apr. 2, 1900.) (No Model.) 2Sheets-Sheet 2.

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UNrrnn Srnrns PATENT \VILTJAM F. GOEL'lZ, \VILLIAM M. GILBERT, AND JOllN FRAIN, Oh \VATER- EURY, CONNECTICUT.

ACETYLENE-GAS LAM F.

SPECIFICATION forming part of Letters Patent No. 649,834, dated May 15,1900.

Application filed October 5,1898. Renewed April 2,1900. Qerial No.11,262. (No model- To all 'ILII/OHZ/ it may concern..-

Be it known that we, ILLIAM F. GoEL'rz, WILLIAM M. GILBERT, and J OHNFRAIN, of lVaterbury, in the county of New Haven and State ofConnecticut, have invented a new and Improved Acetylene-Gas Lamp, ofwhich the following is a full, clear, and exact description.

This invention relates to improvements in lamps in which acetylene gasis used as an illuminating medium; and the object is to provide a lampof this character with a simple and convenient means for controlling thesupply of Water to the carbid.

\Ve will describe an acetylene-gas lam p embodying our invention andthen point out the novel features in the appended claims.

Reference is to be had to the accompanying drawings, forming a part ofthis specification,

in which similar characters of reference inclicate corresponding partsin all the views.

Figure 1 is a vertical section of a lamp embodying our invention,showing the valve closed and the body-cup not fastened in place 2 5excepting by its frictional engagement with a flange on the water fount.Fig. 2 is a sectional elevation of a carbid-holder employed. Fig. 3 is asection on the line 3 of Fig. 2. Fig. 1 is a section on the line at 4 ofFig. 1;

0 and Fig. 5 is a vertical section of the lamp, showing the parts inposition to open the valve.

Referring to the drawings, 1 designates a water-fount having a spout 2,through which water may be passed into the fount. The

3 5 spout 2 is provided with a screw-pin g 3, which is longitudinallyperforated and screw-threaded to receive a valve-phi g 4. Thisvalve-plug at has a longitudinal opening 5, which communicates with alateral opening 6, for a purpose to be hereinafter described. The plug ahas a Washer 7, designed to engage closely against the upper side of theplug 3 to prevent the entrance of air when it is desired to close oi?the flow of water. Mounted on'the fount 1 is a hood 8, having areflector 9 at its rear and a lens 10 at its front, and at the upper endof the hood is a chimney 11, provided with lateral openings and providedat its top with vertical apertures.

Arranged within the fount l is a valve-cas- 5o ing 12, having lateralopenings 13 for the in let of water and havinga screw-top 14. \Vithinthe valve-casing is a flexible valve-seat 15, upon which a valve 16 isdesigned to bear. The valve 16 has a stem portion 17 extended upwardthrough an opening in the cap 11, and surrounding said stem and bearingat one end upon the valve and at the other end against the cap is aspring 18.

The valve-casing has a tubular portion 19, which extends through thebottom of the waterfount, and a short stem 20 extends from the valvedownward into this tubular portion. The bottom of the water-fount has adownwardly extended annular flange 21, with which the body-cup 22 isdesigned to removably engage. The upper portion of the bodycup 22extends into the flanged portion 21 of the fount 1, and pins 23,extended from the body-cup, are designed to engage in bayonetslots 24,formed in the flange 21. The portions of the slot 24: which extendcircumferentially of the flange 21 are inclined upward from the verticalportion of the slots. Therefore when the pins are engaged in thecircumferential1y-disposed portions and the body cup 22 is rotatedrelatively to the waterfount the said cup will be moved upward by thepins engaging with the other portion of the inclined slots, which willbring the edge of the cup 22 closely against the bottom of the fount,and thus prevent the escape of gas. The upward movement of the body-cupis designed to open the water-controlling valve 16, as will behereinafter described. 8 5

Arranged within the body-cup 22 is a carbid-receiver 25, here shown inthe form of a cylinder, having a removable cover 26, and removablyplaced in the carbid-receiver is a carbid-holder or adjustable bottom 27which go is made in the form of a cup and fits frictiontight in thereceiver, so that it may be moved up and down to accommodate it for agreater or less amount of carbid. The Wall of the carbid-holder isvertically corrugated, so that gas may pass down through the openingsthus formed and out underneath the receiver. To facilitate the passageof the gas from under heath the receiver, we form the bottom of thebody-cup 22 with corrugations 28, through the depressions of which thegas may escape.

Extended through the cover 26 of the carbid-receiver is alongitudinally-slotted tube 29, and surrounding this tube 29 is a spring30, which forms a governor for the discharge of water to the carbid. Theupper end of this spring bears against the cover 26, and it may beadjusted or regulated by means of a screw 31, engaging in the lower endof the tube 29 and having its flanged or head portion bearing againstthe lower end of the spring. The upper end of the tube 29 is movablyengaged in the portion 19 of the valve-tube, and the upper end of thesaid tube 29 is provided with a small perforation 32, which appears inline withthe stem 20, but is not closed thereby.

In operation after moving the body-cup 22 upward with relation to thewater-fount, which motion will move the valve 16 off its seat, then thevalve-plug 4 is to be moved outward, so that air may enter through theopening 6 and pass downward into the fount, thus causing the water toflow through the openings 13 and 32 and out through the slots of thetube 29 and between the coils of the spring. This water by coming incontact with the carbid will of course form a gas which will pass upthrough the burner tube 33. The flow of water may be instantly cut offby screwing the valve-plug inward.

By providing the receiver 25 with a removable cover 26 it is obviousthat after removing the cover which carries the governor the receivermay be thrown away after the carbid shall have been consumed and a newre ceiver put in its place, thus obviating the necessity of cleaning thereceiver.

Having thus described our invention, we claim as new and desire tosecure by Letters Patent 1. An acetylene-gas lamp, comprising a pater-fount, a body-cup movably connected with said fount, acarbid-receiver arranged in the body-cup, a valve-tube extended throughthe bottom of the fount, a springpressed valve in said tube, aperforated tube extended through the cover of the carbid-receiver, and acompressible governor surrounding said perforated. tube, substantiallyas specified.

2. An acetylene-gas lamp, comprising a water-fount, a valve-tubeextended through the bottom thereof, a springpressed valve in said tube,a body-cup movable relatively to the fount, a carbid-receiver in thebody-cup, a longitudinally-slotted tube extended through the cover ofsaid receiver and passing into the first-named tube, a coil-springsurrounding the slotted tube, and an adjusting-screw operating in theslotted tube and engaging with the spring, substantially as specified.

3. An acetylene-gas lamp, comprising a water-fount, a body-cup movablyconnected with said fount, a carbid-receiver in the bodycup, avalve-tube extended through the bot= tom of the fount, a valve in saidtube, a perforated tube extended through the top of the carbid-receiver,and a compressible governor surrounding the perforated tube,substantially as specified. V

WILLIAM F. GOELTZ. WILLIAM M. GILBERTl JOHN FRAIN.

\Vitnesscs:

FRANK S. R. DOUGLASS, MICHAEL LONERGAN.

